Tablet computer



FIG. 1 is a front view of a tablet computer showing the new design;

FIG. 2 is a back view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a back perspective view thereof.

The broken lines shown in the drawings illustrate portions of the tablet computer that form no part of the claimed design. 

CLAIM The ornamental design for a tablet computer, as shown and described. 